I'm taking the generic form, just recently resumed but have used it in the past.
Neurontin is Rx-ed for nerve pain as an "off label" use, that it, treating nerve pain is not the function for which it was designed so it's not listed as a use on the manufacturer's label. It is actually an anti-seizure med, but it was found to also reduce neuropathy in patients.
It is my understanding that Lyrica works much in the same way, and is a newer medication by the same company.